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· · COA & SDS available for every product · Same-day shipping on in-stock items 18-Crown-5 [4-(2,4-Dinitrophenylazo)phenol] - AR , CAS No.81238-58-6
GRADE & PURITY AR ? Analytical Reagent grade — high-purity chemicals meeting strict assay limits for lab analysis. Use when accuracy matters and trace impurities could skew results. Synonyms
5-(2,4-Dinitrophenylazo)-2-hydroxy-1,3-xylylene-18-crown 5-Ether | DTXSID10511874 | 3,6,9,12,15-Pentaoxabicyclo[15.3.1]heneicosa-1(21),17,19-trien-21-ol, 19-[2-(2,4-dinitrophenyl)diazenyl]- | 3,6,9,12,15-Pentaoxabicyclo[15.3.1]heneicosa-1(21),17,19-trien-
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Why this grade AR AR for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping Room temperature Ships Normal Check lot-specific COA for exact specifications.
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Quality documents SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Specifications Synonyms
5-(2, 4-Dinitrophenylazo)-2-hydroxy-1, 3-xylylene-18-crown 5-Ether | DTXSID10511874 | 3, 6, 9, 12, 15-Pentaoxabicyclo[15.3.1]heneicosa-1(21), 17, 19-trien-21-ol, 19-[2-(2, 4-dinitrophenyl)diazenyl]- | 3, 6, 9, 12, 15-Pentaoxabicyclo[15.3.1]heneicosa-1(21), 17, 19-trien-
Specifications & Purity
AR
Names and Identifiers Pubchem Sid 488203012 Pubchem Sid Url https://pubchem.ncbi.nlm.nih.gov/substance/488203012 Canonical Smiles C1COCCOCC2=CC(=CC(=C2O)COCCOCCO1)N=NC3=C(C=C(C=C3)[N+](=O)[O-])[N+](=O)[O-] IUPAC Name 19-[(2,4-dinitrophenyl)diazenyl]-3,6,9,12,15-pentaoxabicyclo[15.3.1]henicosa-1(20),17(21),18-trien-21-ol InChIKey QWXPMOXJXQUNKI-UHFFFAOYSA-N INCHI 1S/C22H26N4O10/c27-22-16-11-18(23-24-20-2-1-19(25(28)29)13-21(20)26(30)31)12-17(22)15-36-10-8-34-6-4-32-3-5-33-7-9-35-14-16/h1-2,11-13,27H,3-10,14-15H2 Isomeric SMILES C1COCCOCC2=CC(=CC(=C2O)COCCOCCO1)N=NC3=C(C=C(C=C3)[N+](=O)[O-])[N+](=O)[O-] Molecular Weight 506.47 Reaxy-Rn 4614423 Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4614423&ln=
Documentation 📋 Safety Data Sheet (SDS) Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS → ✅ Certificate of Analysis (COA) Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA → 📊 Datasheet Quick-reference summary of product specifications and applications.
View datasheet → 🔬 Specification Sheet Full quality attributes and acceptance criteria for this grade.
View spec sheet →
Advanced Data 3D Structure Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Molecular Weight 506.500 g/mol XLogP3 1.600 Hydrogen Bond Donor Count 1 Hydrogen Bond Acceptor Count 12 Rotatable Bond Count 2 Exact Mass 506.165 Da Monoisotopic Mass 506.165 Da Topological Polar Surface Area 183.000 Ų Heavy Atom Count 36 Formal Charge 0 Complexity 677.000 Isotope Atom Count 0 Defined Atom Stereocenter Count 0 Undefined Atom Stereocenter Count 0 Defined Bond Stereocenter Count 0 Undefined Bond Stereocenter Count 0 The total count of all stereochemical bonds 0 Covalently-Bonded Unit Count 1
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